Expert Laminated Vehicular Bridges & HS-20 Bridge Design in Salt Lake City, UT

Laminated Vehicular Bridge Builder in Salt Lake City, UT Engineered for Heavy Load Access

Salt Lake City sits at the base of the Wasatch Range, where canyon streams from Mill Creek, Big Cottonwood, Little Cottonwood, and City Creek drop out of the mountains and feed the Jordan River as it runs north toward the Great Salt Lake. Vehicular crossings in this terrain need to carry real weight  fire apparatus, maintenance trucks, agricultural equipment, and construction traffic  while standing up to spring snowmelt, steep canyon drainage, and freeze-thaw cycling at elevation.

Montana Bridge Company brings over 40 years of timber bridge engineering expertise and 8,000+ completed installations to every Salt Lake City area project. We design and build laminated vehicular bridges rated to HS-20 loading standards for municipalities, parks departments, HOAs, developers, and private landowners throughout the Wasatch Front.

Learn how we manage every phase at our Timber Bridge Design & Engineering

Laminated Vehicular Bridge Construction in Salt Lake City, UT Built for Real Load Demands

Custom HS-20 Rated Crossings for Salt Lake's Canyons, Ranches, and Access Roads

Vehicular access across the Salt Lake Valley's terrain from foothill driveways to canyon ranch roads to municipal maintenance routes requires bridges engineered to carry sustained heavy loads, not just foot traffic. Montana Bridge Company designs every laminated vehicular bridge to the specific load, span, and site conditions of the crossing.

Custom laminated vehicular bridge solutions we provide in Salt Lake City include:

  • Driveway and vehicle-access bridges for foothill and canyon properties

  • HS-20 rated crossings for emergency and fire apparatus access

  • Agricultural and ranch bridges for equipment and livestock trailers

  • Municipal and parks department maintenance-vehicle crossings

  • Glue-laminated (glulam) timber bridges for creek and canyon stream crossings

  • Multi-span laminated bridges for longer canyon and river crossings

  • Private estate and development access bridges over irrigation channels and streams

HS-20 Vehicular Bridge Design in Salt Lake City, UT Engineering Built to the Standard

HS-20 is the AASHTO highway loading standard used to rate a bridge's capacity for standard highway vehicles, including trucks up to 36 tons. For Salt Lake City properties needing fire truck access, agricultural equipment crossings, or municipal vehicle routes, an HS-20 rating isn't optional it's the baseline for a bridge that has to perform under real load, not just look the part.

Our HS-20 vehicular bridge design approach in Salt Lake City includes:

  • Structural engineering and sealed, load-rated drawings for every crossing

  • Laminated timber decking and support systems engineered for AASHTO HS-20 loading

  • Foundation and abutment design accounting for canyon soil conditions and freeze-thaw movement

  • Environmentally compliant designs meeting Utah DEQ, Army Corps of Engineers, and U.S.

  • Fish & Wildlife waterway regulations

  • Top-down construction methods that keep heavy equipment off creek banks and sensitive canyon soil during the build

  • Long-term load performance without the ongoing maintenance burden of steel or concrete alternatives

What HS-20 Loading Means for Utah's Terrain

Why Laminated Timber Is the Right Material for Vehicular Loads in Salt Lake City

Glue-laminated timber is manufactured by bonding layers of dimensional lumber under pressure, producing structural members capable of carrying HS-20 highway loads while resisting the freeze-thaw cycling that damages concrete and the corrosion that affects steel in wet canyon and riparian environments. It also blends into the Wasatch landscape in a way steel girders and concrete decks don't.

Montana Bridge Company uses laminated timber that is responsibly sourced, properly treated for outdoor exposure and insect resistance, and engineered to meet or exceed HS-20 load specifications for public, private, agricultural, and commercial vehicular applications. The structures we build in the Salt Lake City area are designed to carry that load for generations.

Learn more about our Sustainable Timber Bridge methods

Permitting & Engineering for Vehicular Bridges in Salt Lake City's Regulatory Environment

Vehicular bridge projects in Utah carry a heavier permitting and engineering load than pedestrian crossings sealed structural drawings, load calculations, and coordination with Utah DEQ, the Army Corps of Engineers, U.S. Fish & Wildlife in riparian areas, and local county permitting offices are all part of getting an HS-20 rated bridge approved and built.

Montana Bridge Company handles every step under one roof. Our lead designer, James York, has been engineering timber bridges since the 1980s, bringing nearly four decades of hands-on structural and environmental expertise to every Salt Lake City–area project. Our full-service process includes:

  • Detailed site evaluations and 3D terrain modeling

  • Custom structural engineering and sealed, HS-20 load-rated drawings

  • Environmental impact assessments and full multi-agency permitting

  • Onsite construction by skilled bridge craftsmen using top-down methods

  • Post-construction inspections, timber treatments, and long-term maintenance

After the build, we stay available. The same team that constructed your bridge returns for scheduled inspections, retreatments, and repairs keeping every structure safe and load-rated for the decades ahead.

Serving Salt Lake City and Surrounding Wasatch Front Communities

Montana Bridge Company serves municipalities, private landowners, developers, HOAs, and agricultural operators throughout Salt Lake City and surrounding communities including:

  • Sandy

  • West Jordan

  • Murray

  • Draper

  • Cottonwood Heights

  • Holladay

  • South Jordan

  • Bountiful

  • Park City

  • Throughout Salt Lake, Summit, Davis, and Utah Counties

From a single ranch access bridge to a multi-span HS-20 rated crossing along a canyon access road, our team delivers dependable, load-rated laminated timber bridge solutions tailored to your site, your community, and Utah's regulatory environment.

Frequently Asked Questions Laminated Vehicular Bridges & HS-20 Design in Salt Lake City, UT

  • Yes. We design and build custom glue-laminated timber vehicular bridges for municipalities, ranches, developments, and private properties.

  • HS-20 is the AASHTO highway loading standard for bridges carrying standard highway trucks up to 36 tons — our vehicular bridges are engineered to meet this standard.

  • Yes. Our HS-20 rated bridges are engineered to withstand canyon terrain, spring runoff, and Utah's freeze-thaw conditions.

  • Yes. Every vehicular bridge is designed with sealed structural drawings that meet HS-20 load specifications.

  • Yes. We provide site evaluations, structural engineering, sealed drawings, and permitting support for HS-20 vehicular bridge projects throughout Utah.

  • We serve Salt Lake City and surrounding communities, including Sandy, West Jordan, Murray, Draper, Holladay, South Jordan, Bountiful, and Park City.

Ready to Build a Laminated Vehicular Bridge in Salt Lake City, UT?

Montana Bridge Company designs and builds custom laminated timber vehicular bridges, HS-20 rated crossings, and sustainable structures for municipalities, HOAs, developers, and private landowners throughout Salt Lake City and the Wasatch Front.

Call 813-694-4244 or email Info@montanabridgecompany.com to schedule your free site consultation today.

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